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Example code of friendsofhyperf/ipc-broadcaster

Informations about the package ipc-broadcaster

Ipc Broadcaster

中文说明

Broadcast serializable messages between Hyperf server workers and user processes.

Installation

The package automatically registers its ConfigProvider. It binds BroadcasterInterface to AllProcessesBroadcaster and registers the listeners required to receive messages in server workers. There is no configuration file to publish.

The package declares hyperf/event ~3.2.0 and no optional dependencies in its composer.json. Use it in a Hyperf server application that provides the server, process, container, and DI runtime classes used by the broadcasters.

Broadcast Messages

The broadcast() function accepts an IpcMessageInterface instance or a closure. By default, it uses AllProcessesBroadcaster to send the message to all other server workers and all registered coroutine user processes.

Class Message

Extend IpcMessage and implement handle(). IpcMessage also provides getFromWorkerId() and setFromWorkerId() through InteractsWithFromWorkerId. When a server worker receives the message, getFromWorkerId() contains the sending worker ID.

Message objects and their properties must be serializable so they can cross process boundaries.

Closure Message

Closures are wrapped in ClosureIpcMessage and serialized before broadcasting. Values captured by the closure must therefore also be serializable. In a normal Hyperf DI environment, typed closure parameters can be resolved from the container.

Select Targets

Inject BroadcasterInterface for the default all-processes behavior, or construct a specific broadcaster to select targets:

ServerBroadcaster accepts a container and an optional worker ID. Without an ID, it sends to every server worker except the current worker. UserProcessesBroadcaster accepts an optional process name and process ID. Without either, it sends to all registered user processes collected by Hyperf's ProcessCollector.

Handle Messages in User Processes

The component automatically calls handle() for messages received by server workers. In a user process, Hyperf dispatches a Hyperf\Process\Event\PipeMessage; the component does not automatically call the contained message's handle() method. Register a listener when the user process should execute the message:

Run in the Current Worker

By default, broadcasts do not execute in the current server worker. Add RunsInCurrentWorker to a message to call handle() once in the current worker before it is sent to the selected targets:

Coroutine Server Limitation

After MainCoroutineServerStart, cross-process broadcasting is disabled and broadcaster calls return without sending messages. A message using RunsInCurrentWorker still runs once locally before the broadcaster returns.

All versions of ipc-broadcaster with dependencies

PHP Build Version
Package Version
Requires hyperf/event Version ~3.2.0
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